Shallow seabed dry type oil extraction device personnel cabin entering and exiting system

Abstract

The invention relates to a shallow seabed dry type oil extraction device personnel cabin entering and exiting system. A cabin external structure assembly is vertically suspended on a water surface supporting assembly, power is supplied through the water surface supporting assembly, and a mechanical assembly used for executing drainage, water injection, gas supplementation and emergency operation is installed in the cabin external structure assembly; a life support assembly used for providing oxygen for breathing and an electric control assembly used for providing cabin inside illumination, equipment power supply and signal collection and processing are included; a dry cabin hatch assembly is further included, when the cabin external structure assembly and the dry cabin hatch assembly are in butt joint, the interior of the cabin external structure assembly and the interior of the dry cabin hatch assembly are communicated, and a vertical channel for personnel to pass through is formed. The shallow seabed dry type oil extraction device personnel cabin entering and exiting system can be used for achieving dry-type normal-pressure entering and exiting of the personnel for maintaining ashallow underwater oil extraction dry-type cabin, and harm to the health of the personnel is avoided; the shallow seabed dry type oil extraction device personnel cabin entering and exiting system is good in economical efficiency and low in maintenance cost; the shallow seabed dry type oil extraction device personnel cabin entering and exiting system is easy to transport, and multiple oil wells canshare the same system; and the shallow seabed dry type oil extraction device personnel cabin entering and exiting system has no influence on navigation channels and military areas and is wide in application range.

Description

technical field [0001] The invention relates to the technical field of personnel entering and exiting cabins of oil production devices, in particular to a system for personnel entering and exiting cabins of shallow-depth seabed dry oil production equipment. Background technique [0002] With the deepening of the development of oilfields in the Bohai Bay, some marginal small oilfields are located in the restricted areas of the Bohai Sea (military areas, waterway areas, etc.), and construction of engineering facilities is not allowed on the sea. Although the conventional wet subsea production system is technically expected to solve the problem of oilfield development in restricted areas, its complex equipment, high technical threshold, and high investment cost have greatly hindered large-scale application and will greatly reduce the economics of oilfield development. efficiency, and most of its equipment is imported from abroad, which cannot meet the requirements of the manage...

AI Technical Summary

Problems solved by technology

Although the conventional wet subsea production system is technically expected to solve the problem of oilfield development in restricted areas, its complex equipment, high technical threshold, and high investment cost have greatly hindered large-scale application and will greatly reduce the economics of oilfield development. efficiency, and most of its equipment is imported from abroad, which cannot meet the requirements of the management of our country's military areas. In the later maintenance, personnel are also required to operate under pressure, which brings great harm to the physical and mental health of personnel.

[0003] The current attempt includes the use of raising the riser. Before entering the dry cabin, the construction ship will install the riser in place, and the maintenance personnel will enter the cabin through the riser. This way of raising the riser requires the cooperation of a large construction ship. And the preparation time is long, which affects the passage of the channel, and the rising riser is greatly affected by the water flow, and the flange structure on the dry tank connected to the bottom of the riser is relatively complicated. This method is inefficient and requires a lot of work. Operability is not strong

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